I have a touchsreen yes. What I want to happen is for my mobile to have the same facilities as the in-car motorola handset. EG, ring in the car through the speakers, display who is calling, switch off the music and be able to speak hands-free. Then when the caller hangs up for the screen to go back to Nav, Audio or climate and the music to continue where it was interrupted. In my Volvo, I had a Yatour system which plugged into the multichanger socket, but it had no touchscreen.
Thanks for your help so far.